banding patterns
Chromosomes stained with certain dyes, commonly quinacrine (Q banding) or Giemsa (G banding), show a pattern of transverse bands of light and heavy staining that is characteristic for the individual chromosome. The basis of the differential staining, which is the same in most tissues, is not understood: each band represents 5-10% of the length, about 107 base pairs, although this is not true for polytene chromosomes in Drosophila that show more than 4000 bands.

Dictionary of molecular biology. 2004.

Look at other dictionaries:

  • banding patterns of chromosomes — banding patterns of chromosomes. См. исчерченность хромосом. (Источник: «Англо русский толковый словарь генетических терминов». Арефьев В.А., Лисовенко Л.А., Москва: Изд во ВНИРО, 1995 г.) …   Молекулярная биология и генетика. Толковый словарь.

  • Banding of chromosomes — The treatment of chromosomes to reveal characteristic patterns of horizontal bands like bar codes. The banding patterns lend each chromosome a distinctive appearance so the 22 pairs of human nonsex chromosomes and the X and Y chromosomes can be… …   Medical dictionary

  • banding — The process of differential staining of (usually) metaphase chromosomes of cells to reveal the characteristic patterns of bands that permit identification of individual chromosomes and recognition of missing segments; each of the 22 pairs of… …   Medical dictionary

  • Chromosome banding — The treatment of chromosomes to reveal characteristic patterns of horizontal bands like bar codes. The banding patterns lend each chromosome a distinctive appearance so the 22 pairs of human nonsex chromosomes and the X and Y chromosomes can be… …   Medical dictionary

  • G banding — (= Giemsa banding) Spreads of metaphase chromosomes, treated briefly with protease then stained with Giemsa, produce characteristic banding patterns that allow identification of the separate chromosomes. The deeply staining G bands do not… …   Dictionary of molecular biology

  • Q banding — See banding patterns and quinacrine …   Dictionary of molecular biology

  • Q banding — quinacrine banding differential staining of chromosomes to elicit chromosome bands (Q bands), consisting of examination of the chromosomes by fluorescence microscopy after they have been stained with quinacrine mustard or related compounds, the… …   Medical dictionary

  • chromosome banding — Differential staining of chromosomes in such a way that light and dark areas occur along the length of the chromosomes in repeatable patterns. Identical banding pattern implies chromosome homology …   Glossary of Biotechnology

  • исчерченность хромосом — banding patterns of chromosomes сегментация (исчерченность) хромосом. Kомплекс различающихся по интенсивности прокрашивания поперечных меток на хромосомах, возникающих в результате применения того или иного метода дифференциального окрашивания… …   Молекулярная биология и генетика. Толковый словарь.

  • Cytogenetics — A metaphase cell positive for the bcr/abl rearrangement using FISH For the scientific journal of this title, see Cytogenetics and Genome Research. Cytogenetics is a branch of genetics that is concerned with the study of the structure and function …   Wikipedia

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